It's funny, I hope the exact opposite of this. Fallout doesn't take itself too seriously, and that's it's greatest strength in my opinion. If people want overly serious post apocalyptic shit, The Last of Us is there, Fallout should be silly as Hell like it's always been.
It depends which Fallout we are talking about. Fallout 1 was a pretty serious story. Yea, there was some humor but it was fairly low key. Fallout 2 kind of went full ham in places.
Fallout 3 had some humorous parts but again was fairly serious… just not well written. Fallout NV was very well written but again was nowhere near a comedy.
Then we have Fallout 4 which was a disaster from writing perspective. And we have Fallout 76…
So really the only Fallout that went full ham on humor, but was still pretty dark despite that, was Fallout 2.
I kind of want to see the mix of both serious subject matter as well as Fallout hijinks. I just don’t trust Amazon to do it considering their previous attempts with Rings of Power and Wheel of Time.